Results 61 to 70 of about 30,971 (191)
Rare Metals, EarlyView.ABSTRACT The evolution of the γ′−Ni3(Al, Ti) phase in superalloys is governed by a coupled coalescence‐ripening mechanism driven by elemental diffusion. In this study, thermal exposure experiments were performed at 750°C and 800°C for durations ranging from 100 to 20,000 h.
Zhaotian Wang +5 more
wiley +1 more source
Gaoya dianqi, 2005 介绍了变压器绕组电容测试和短路阻抗试验两个判断变压器绕组变形的试验及判断方法,通过对故障变压器试验及吊罩结果的分析,证明两个方法可以与变压器绕组变形试验结合判断绕组变形程度。
罗铮
doaj
Rare Metals, EarlyView.ABSTRACT Single‐atom catalysis hinges on fundamental challenges in precisely controlling metal‐support interactions and rationally regulating metal–adsorbate relationships. Herein, we report a universal strategy for constructing highly efficient and well‐defined Cu(I) single‐atom catalysts based on a trifurcate AlL3 molecular support.
Donghui Zhang +9 more
wiley +1 more source
[Solid placental transmogrification of the lung: A case report and literature review]. [PDF]
Beijing Da Xue Xue Bao Yi Xue Ban, 2023 Ha XM, Yao YZ, Sun LH, Xin CY, Xiong Y.
europepmc +1 more source
Rare Metals, EarlyView.ABSTRACT Developing Cu‐based composites that simultaneously achieve ultra‐high strength, ductility, and electrical conductivity remains critical for advanced electrical contact applications. In this work, multiphase AlCrCuFeNi2.5 high‐entropy alloy (HEA) reinforcements are incorporated into CuCrZr matrix via spark plasma sintering (SPS) and annealing ...
Tao Hong +8 more
wiley +1 more source
[Construction and biological characterization of a Proteus mirabilis strain with modABC gene deletion]. [PDF]
Nan Fang Yi Ke Da Xue Xue Bao, 2023 Huang Y +4 more
europepmc +1 more source
Dianci bileiqi, 2019 机械强度属于盘形悬式绝缘子的重要指标,但在机械试验中会出现盘形绝缘子形变。为研究机械试验过程中各部件的承力及形变情况,本文以120～550 kN的盘形悬式瓷、玻璃绝缘子为研究对象,以金属材料弹性模量计算方法为基础,开展了盘形悬式绝缘子的应力应变特性研究。研究表明,盘形绝缘子形变主要集中在铁帽和钢脚处,其前期的弹性模量受到铁帽形状设计的影响,其形变值大于铸铁材料形变值的10倍;根据Inglis理论和Griffith能量平衡理论,尽管水泥碎裂产生的势能释放有一部分由沥青的缓冲 ...
刘洋 +5 more
doaj
Rare Metals, EarlyView.ABSTRACT The growing concern over human health issues, driven by increasingly severe electromagnetic pollution from 5G communication, has made the urgent development of high‐performance electromagnetic wave (EMW) absorbing materials. Although carbide‐based materials are promising because of their conductive and polarization losses, existing single ...
Chenqiang Duan +9 more
wiley +1 more source
[Non-rigid registration for medical images based on deformable convolution and multi-scale feature focusing modules]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi, 2023 Peng K, Zhang G, Wang J, Chu J.
europepmc +1 more source
Gaoya dianqi, 2009 介绍了SF6高压断路器分合闸绝缘拉杆动态形变微机测试系统的工作原理与测试方法,给出了某型号高压断路器绝缘拉杆的弯曲变形和杆件拉伸形变量试验数据,并结合测试波形得出了绝缘拉杆变形过程,达到了测量速度快、测试数据直观、精度高、实时性强等效果。
李靖 +4 more
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